Could you please describe your application: (y1S*_D
1, is the emitting source single mode or multimode? what are the parameters i.e. divergence, waist, ... l}k'ZX 4 2, is the fiber single mode or multimode? what is the NA, core dia,... wA6E7vi' qEVpkvEq Generally, fiber coupling efficiency of 40%~90% is reasonable. HrMbp _;:_ !` Again let us know your specific bug. s,l*=< m\E=I5*/ MANG2004 jVHS1Vsei